DCsisääntulo
DCsisääntulo is a Finnish term that translates to "DC input" in English. It refers to a connection point on an electronic device or system where direct current (DC) power is supplied. This is in contrast to an AC input, which accepts alternating current. Many electronic devices, such as laptops, smartphones, and various appliances, require a DC power source to operate. This DC power is often derived from a wall adapter (power supply) that converts the AC power from the mains electricity into the appropriate DC voltage and current. The DC input on a device allows for this connection. It is typically a port or socket designed to receive a specific type of connector, like a barrel jack or a USB port. The characteristics of the DC input, such as the voltage and polarity, are crucial for the proper and safe functioning of the connected device. Using an incorrect power adapter can lead to damage or malfunction. Therefore, it is important to ensure that the power supply matches the specifications indicated for the device's DC input.